JPH01208526A - Starter for turbocompressor - Google Patents
Starter for turbocompressorInfo
- Publication number
- JPH01208526A JPH01208526A JP3184688A JP3184688A JPH01208526A JP H01208526 A JPH01208526 A JP H01208526A JP 3184688 A JP3184688 A JP 3184688A JP 3184688 A JP3184688 A JP 3184688A JP H01208526 A JPH01208526 A JP H01208526A
- Authority
- JP
- Japan
- Prior art keywords
- air
- partition
- casing
- turbo compressor
- air injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007858 starting material Substances 0.000 title abstract 3
- 238000002347 injection Methods 0.000 claims abstract description 35
- 239000007924 injection Substances 0.000 claims abstract description 35
- 238000005192 partition Methods 0.000 claims abstract description 26
- 239000000446 fuel Substances 0.000 description 11
- 239000000567 combustion gas Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的コ
（産業上の利用分野）
本発明は燃料電池発電プラント等において使用されるタ
ーボコンプレッサ起動装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention (Field of Industrial Application) The present invention relates to a turbo compressor starting device used in a fuel cell power generation plant or the like.
（従来の技術）
−ｆｆｉに、燃料電池発電システムは第５図のように構
成されている。(Prior Art) -ffi, a fuel cell power generation system is configured as shown in FIG.
同図において、燃ｆｌｆ池１の反応物質として水素と空
気が使用されているが、この水素は天然ガス（メタン）
またはナフサを燃料改質器２により水素、−ａ化炭素、
二酸化炭素に改質することにより得ている。燃料改質器
２における燃料改質には燃料と水蒸気を約９００°Ｃの
温度で反応させることが必要であり、そのなめ、燃料改
質器２には燃焼器３が組込まれ、燃料改質器２を加熱す
るようになっている。In the figure, hydrogen and air are used as reactants in fuel cell 1, but this hydrogen is replaced by natural gas (methane).
Or naphtha is converted into hydrogen, -a carbon,
It is obtained by reforming it into carbon dioxide. To reform the fuel in the fuel reformer 2, it is necessary to cause the fuel and steam to react at a temperature of approximately 900°C, and for this reason, the fuel reformer 2 is equipped with a combustor 3, It is designed to heat vessel 2.
一方、燃焼器３からの排ガスは燃料電池１へ圧縮空気を
供給するターボコンプレッサの駆動用熱源として利用さ
れる。圧縮空気の供給量の調整はターボコンプレッサの
出力を調整することによって行われるが、そのターボコ
ンプレッサの上流側には補助燃焼器５が設けられ、ター
ボコンプレッサ４のタービン入口温度制御と空気供給系
起動時の燃焼器の働きを行っている。On the other hand, exhaust gas from the combustor 3 is used as a heat source for driving a turbo compressor that supplies compressed air to the fuel cell 1. The amount of compressed air supplied is adjusted by adjusting the output of the turbo compressor, and an auxiliary combustor 5 is provided upstream of the turbo compressor to control the turbine inlet temperature of the turbo compressor 4 and start the air supply system. It acts as a combustor of time.
前述のようにターボコンプレッサ４は起動時には補助燃
焼器５の燃焼ガスにより駆動されるが、起動開始時には
補助燃焼器５からの燃焼ガスが供給されないため、ター
ボコンプレッサを起動させるための装置が別に必要であ
る。すなわち、補助燃焼器５からの燃焼ガスがターボコ
ンプレッサ４を駆動できる状態になるまで、ターボコン
プレッサ４の回転数を上昇させることのできるターボコ
ンプレッサ起動装置が必要である。As mentioned above, the turbo compressor 4 is driven by the combustion gas from the auxiliary combustor 5 at the time of startup, but since the combustion gas from the auxiliary combustor 5 is not supplied at the beginning of startup, a separate device is required to start the turbo compressor. It is. That is, a turbo compressor starting device is required that can increase the rotational speed of the turbo compressor 4 until the combustion gas from the auxiliary combustor 5 reaches a state where the turbo compressor 4 can be driven.
従来のターボコンプレッサ起動装置は、第６図に示すよ
うに、ケーシング６の外周部に設けた小室７に配管８を
介して高圧空気９を空気人口１１より導入し、ケーシン
グ６の内面に設けた複数の空気噴射孔１０よりインペラ
１２に向けて噴射用空気１３を噴射させてロータ１４を
回転させるよう構成されており、このターボコンプレッ
サ起動装置によりターボコンプレッサ４が補助燃焼器５
の燃焼ガスによって駆動されるようになるまでターボコ
ンプレッサを昇速させる。As shown in FIG. 6, the conventional turbo compressor starting device introduces high-pressure air 9 from an air port 11 through a pipe 8 into a small chamber 7 provided on the outer periphery of the casing 6. It is configured to inject injection air 13 toward an impeller 12 from a plurality of air injection holes 10 to rotate a rotor 14, and the turbo compressor 4 is activated by the auxiliary combustor 5 by this turbo compressor starting device.
The turbo compressor is ramped up until it is driven by the combustion gases.
（発明が解決しようとする課題）
ところで、空気噴射孔１０からの空気噴射は前述のよう
に、ターボコンプレッサ４が補助燃焼器５の燃焼ガスで
駆動されるようになれば中止されるが、圧縮空気の通路
に複数の空気噴射孔１０が開口しているために、空気の
流れが空気噴射孔１０と共振し、ロータ１４やケーシン
グ６等の各部に振動現象が発生することがある。(Problem to be Solved by the Invention) By the way, as described above, the air injection from the air injection hole 10 is stopped when the turbo compressor 4 is driven by the combustion gas of the auxiliary combustor 5, but the compression Since a plurality of air injection holes 10 are opened in the air passage, the air flow may resonate with the air injection holes 10, and a vibration phenomenon may occur in various parts such as the rotor 14 and the casing 6.
この振動が過大となった場合には、ターボコンプレッサ
４は緊急停止させなければならない、また、インペラ１
２の破損や軸受けの損傷など、発電プラント運用に重大
な支障を発生させるおそれがある。If this vibration becomes excessive, the turbo compressor 4 must be brought to an emergency stop, and the impeller 1 must be stopped immediately.
There is a risk that serious problems may occur in the operation of the power generation plant, such as damage to the bearings or damage to the bearings.
従って、空気噴射終了後（起動完了後）の通常運転時に
おいて、運転に支障が出るような共振を生じさせないタ
ーボコンプレッサ起動装置が必要である。Therefore, there is a need for a turbo compressor starting device that does not generate resonance that would impede operation during normal operation after air injection is completed (startup is completed).
本発明は上述した従来技術の欠点を改善すべくなされた
もので、通常運転時に、コンプレッサのインペラ部の近
傍を流れる空気が空気噴射孔と共振してターボコンプレ
ッサに振動が発生することを防止したターボコンプレッ
サ起動装置を提供することを目的とする。The present invention was made in order to improve the above-mentioned drawbacks of the prior art, and prevents the air flowing near the impeller of the compressor from resonating with the air injection holes and causing vibrations in the turbo compressor during normal operation. The purpose of the present invention is to provide a turbo compressor starting device.
［発明の構成］
（課題を解決するための手段）
本発明のターボコンプレッサは、コンプレッサケーシン
グの内面に設けた複数の空気噴射孔よりインペラに高圧
空気を噴射して起動させるターボコンプレッサにおいて
、前記空気噴射孔に仕切りを設け、ターボコンプレッサ
の起動中には前記仕切りが開き、起動完了後には前記仕
切りが閉じるように構成したことを特徴とするものであ
る。[Structure of the Invention] (Means for Solving the Problem) The turbo compressor of the present invention is a turbo compressor that is activated by injecting high-pressure air into an impeller from a plurality of air injection holes provided on the inner surface of a compressor casing. The present invention is characterized in that a partition is provided in the injection hole, and the partition is opened during startup of the turbo compressor and closed after startup is completed.
（作用）
上述のように構成した本発明装置において、空気噴射孔
に設けた仕切りはターボコンプレッサの起動時には開い
て、インペラに空気を噴射しているが、起動完了後に空
気噴射が中止されると仕切りは閉じる。(Function) In the device of the present invention configured as described above, the partition provided in the air injection hole is opened when the turbo compressor is started and air is injected into the impeller, but if the air injection is stopped after the startup is completed, The partition is closed.
従って、通常運転時にコンプレッサのインペラ部を流れ
る空気が空気噴射孔と共振してターボコンプレッサに振
動が発生することは防止される。Therefore, during normal operation, the air flowing through the impeller portion of the compressor resonates with the air injection holes and vibrations are prevented from occurring in the turbo compressor.
（実施例）
次に、第１図ないし第４図を参照して本発明装置の実施
例を説明する。なお、これらの図において、第６図にお
けると同一部分には同一符号を付し、相違点のみを説明
する。(Example) Next, an example of the apparatus of the present invention will be described with reference to FIGS. 1 to 4. In these figures, the same parts as in FIG. 6 are given the same reference numerals, and only the differences will be explained.
本発明装置においては、第１図に示すようにケーシング
６の外周面に設けた小室７の一端に開けられた空気噴射
孔１０に、仕切り１５が可動的に取付けられている。こ
の仕切り１５は、第２図に示すように、ケーシング６に
設けた出入孔１６内に後退できるよう、連結機構１７を
介して駆動装！（図示せず）に連結されている。なお、
仕切り１５は後退時には出入孔１６を閉塞し、前進時（
第２図の１５′の状態）には、ケーシング６との間に段
差が生じないよう仕切りの外面はケーシング６の内周面
と同一曲面に成型されている。In the device of the present invention, a partition 15 is movably attached to an air injection hole 10 formed at one end of a small chamber 7 provided on the outer peripheral surface of a casing 6, as shown in FIG. As shown in FIG. 2, this partition 15 is driven by a connecting mechanism 17 so that it can be retreated into an inlet/outlet hole 16 provided in the casing 6. (not shown). In addition,
The partition 15 closes the entrance/exit hole 16 when moving backward, and when moving forward (
In the state 15' in FIG. 2), the outer surface of the partition is molded to have the same curved surface as the inner circumferential surface of the casing 6 so that there is no step between the partition and the casing 6.
このような構成の本発明装置においては、ターボコンプ
レッサ４を起動する際、外部から配管８を通して高圧空
気９を空気人口１１より小室７に導入し、空気噴射孔１
０よりイ゛ンペラ１２へ向けて噴射する。この場合、仕
切り１５は空気噴射する前にモータ等の駆動装置によっ
て出入孔１６内に後退し、噴射用空気１３の噴射を妨害
しない。In the device of the present invention having such a configuration, when starting the turbo compressor 4, high pressure air 9 is introduced from the outside through the pipe 8 into the small chamber 7 from the air port 11, and the air injection hole 1 is
0 toward the impeller 12. In this case, the partition 15 is moved back into the inlet/outlet hole 16 by a drive device such as a motor before air is injected, so that the partition 15 does not interfere with the injection of the air 13 for injection.
一方、起動完了時には、空気の噴射が中止されると、仕
切り１５は駆動装置により１５′の位置まで前進し、空
気噴射孔１０を閉じる。On the other hand, when the start-up is completed, when the air injection is stopped, the partition 15 is advanced to the position 15' by the driving device, and the air injection hole 10 is closed.
このように本発明装置においては、ターボコンプレッサ
４の起動完了後には、仕切り１５を閉じることによって
ターボコンプレッサ４の吐出空気流れが共振するような
開口部がケーシングの内壁面には存在しなくなり、空気
流の共振に基づくターボコンプレッサの振動発生を防止
できる。In this way, in the device of the present invention, after the startup of the turbo compressor 4 is completed, by closing the partition 15, there is no longer an opening on the inner wall surface of the casing where the discharge air flow of the turbo compressor 4 resonates, and the air Vibration of the turbo compressor due to flow resonance can be prevented.
第３図と第４図は本発明の他の実施例を示す。3 and 4 show other embodiments of the invention.
この実施例では、仕切り２０はバネ２１、連結棒２２、
支持体２３を介して小室７の出口内壁に取付けられてい
る。In this embodiment, the partition 20 includes a spring 21, a connecting rod 22,
It is attached to the outlet inner wall of the small chamber 7 via a support 23.
仕切り２０はターボコンプレッサ４が停止中、及び通常
運転時には、第３図に示すように、バネ２１によりケー
シング６に押付けられ、空気噴射孔１０を閉ざしている
。また起動時には、第４図に示すように、噴射用空気１
３の圧力がバネ２１の力に打ち勝つと、仕切り２０を押
し開き、噴射用空気を噴射する。起動が完了し、噴射用
空気の噴射が中止されると、バネ２１の力で仕切り２０
は再び閉じる。When the turbo compressor 4 is stopped and in normal operation, the partition 20 is pressed against the casing 6 by a spring 21 to close the air injection hole 10, as shown in FIG. Also, at startup, as shown in Figure 4, the injection air 1
When the pressure 3 overcomes the force of the spring 21, the partition 20 is pushed open and the injection air is injected. When the startup is completed and the injection of air is stopped, the force of the spring 21 closes the partition 20.
closes again.
［発明の効果］
以上述べたように、本発明のターボコンプレッサ起動装
置においては、空気噴射孔に設けた仕切りをターボコン
プレッサの起動完了後に閉じるようにしたので、コンプ
レッサの吐出空気の流れが空気噴射孔と共振することが
なくなる。従って、ターボコンプレッサの振動や騒音を
防止でき、またプラントの信頼性を向上させることがで
きる。[Effects of the Invention] As described above, in the turbo compressor starting device of the present invention, the partition provided in the air injection hole is closed after the startup of the turbo compressor is completed, so that the flow of air discharged from the compressor is controlled by the air injection hole. There will be no resonance with the hole. Therefore, vibration and noise of the turbo compressor can be prevented, and the reliability of the plant can be improved.
第１図は本発明の実施例を示す断面図、第２図は第１図
の部分拡大図、第３図及び第４図は本発明の他の実施例
を示す部分拡大図、第５図は燃料電池発電プラントの概
略系統図、第６図は従来のターボコンプレッサ起動装置
を例示する部分拡大図である。
４１・・・・・・・・・燃料電池
２・・・・・・・・・燃料改質器
３・・・・・・・・・燃焼器
４・・・・・・・・・ターボコンプレッサ５・・・・・
・・・・補助燃焼器
６・・・・・・・・・ケーシング
ア・・・・・・・・・小室
８・・・・・・・・・配管
９・・・・・・・・・高圧空気
１０・・・・・・・・・空気噴射孔
１１・・・・・・・・・空気入口
１２・・・・・・・・・インペラ
１３・・・・・・・・・噴射用空気
１４・・・・・・・・・ロータ
１５．２０・・・・・・・・・仕切り
１６・・・・・・・・・出入孔
１７・・・・・・・・・連結機構
２１・・・・・・・・・バネ
２２・・・・・・・・・連結棒
２３・・・・・・・・・支持体
代理人 弁理士 則 近 憲 佑
同 第子丸 健
第１０
第４：
第５図FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a partially enlarged view of FIG. 1, FIGS. 3 and 4 are partially enlarged views showing other embodiments of the present invention, and FIG. 6 is a schematic system diagram of a fuel cell power generation plant, and FIG. 6 is a partially enlarged view illustrating a conventional turbo compressor starting device. 41...Fuel cell 2...Fuel reformer 3...Combustor 4...Turbo compressor 5...
...Auxiliary combustor 6...Casing a...Small chamber 8...Piping 9... High pressure air 10...... Air injection hole 11... Air inlet 12... Impeller 13... For injection Air 14...Rotor 15.20...Partition 16...Inlet/exit hole 17...Connection mechanism 21・・・・・・・・・Spring 22・・・・・・・・・Connecting rod 23・・・・・・・・・Support agent Patent attorney Noriyuki Chika Kendai 10th 4: Figure 5
Claims (1)
気噴射孔よりインペラに高圧空気を噴射して起動させる
ターボコンプレッサにおいて、前記空気噴射孔に仕切り
を設け、ターボコンプレッサの起動中には前記仕切りが
開き、起動完了後には前記仕切りが閉じるように構成し
たことを特徴とするターボコンプレッサ起動装置。(1) In a turbo compressor that starts by injecting high-pressure air into an impeller from a plurality of air injection holes provided on the inner surface of the compressor casing, a partition is provided in the air injection hole, and the partition opens during startup of the turbo compressor. . A turbo compressor starting device, characterized in that the partition is configured to close after completion of starting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3184688A JPH01208526A (en) | 1988-02-16 | 1988-02-16 | Starter for turbocompressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3184688A JPH01208526A (en) | 1988-02-16 | 1988-02-16 | Starter for turbocompressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01208526A true JPH01208526A (en) | 1989-08-22 |
Family
ID=12342419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3184688A Pending JPH01208526A (en) | 1988-02-16 | 1988-02-16 | Starter for turbocompressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01208526A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1329382A2 (en) * | 2002-01-16 | 2003-07-23 | United Technologies Corporation | Engine integrated auxiliary power unit |
-
1988
- 1988-02-16 JP JP3184688A patent/JPH01208526A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1329382A2 (en) * | 2002-01-16 | 2003-07-23 | United Technologies Corporation | Engine integrated auxiliary power unit |
| EP1329382A3 (en) * | 2002-01-16 | 2005-03-23 | United Technologies Corporation | Engine integrated auxiliary power unit |
| US6968701B2 (en) | 2002-01-16 | 2005-11-29 | United Technologies Corporation | Engine integrated auxiliary power unit |
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